Thereianthus minutus (Klatt) G.J.Lewis

Species

Angiosperms > Asparagales > Iridaceae > Thereianthus

Characteristics

Plants 100-200(-300) mm high. Corm 7-10 mm diam.; tunics of fine-textured, netted fibres, sometimes accumulating with age. Stem usually inclined but flexed outward above sheath of second leaf and then erect. Leaves 3 or 4(-6), lowermost mostly much shorter than spike, usually falcate but rarely linear-arcuate, (30-)40-100(-350) x (1.5-)3.0-7.0 mm, thick-textured with main vein evident but not raised when fresh (becoming raised when dry), plus 1 or 2 evident secondary veins on each side, uppermost leaf well separated from spike, short and entirely sheathing. Spike erect, compact, moderately densely (3-)5-to 10(-20)-flowered; bracts shortly overlapping, outer (5-)6-8 mm long, obtuse to truncate, green and leathery below, dry and brown in upper 1/2, ± 1.5 internodes long, inner ± 1.0-1.5 mm shorter than outer, brown and papery with narrow darker zone along veins. Flowers suberect, dark pink to magenta, lower 3 tepals usually with darker median mark near base, throat white; perianth subactinomorphic, salver-shaped; tube straight, 20-30 x 1.2-1.5 mm, widening gradually and evenly from base; tepals spreading and slightly cupped, elliptical to oblanceolate, subequal, 7-10 x 2-4 mm. Stamens unilateral; filaments erect, 3-4 mm long, exserted ± 2 mm from top of tube; anthers 3-4 mm long, pale yellow; pollen cream-coloured. Style arching over stamens, dividing just below or just above base of anthers, branches ± 4 mm long, divided for ± 1/2 their length. Capsules flask-shaped, 6-8 mm long. Seeds fusiform, 1.5-2.0 mm long, with chalazal extension to 4 mm long, thus ± twice as long as seed body, sharply bent back ± midway and hooked or crook-like, sometimes twisting around adjacent seeds, reddish brown, longitudinally rugulose.
More
Cormous geophyte, 10-20 cm. Leaves sword-shaped with definite midrib. Flowers magenta, tube 20-30 mm long, much longer than tepals; bracts 6-8 mm long, not veined.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 0.2
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity 6-8
Soil texture 6-8
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Thereianthus minutus world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:441505-1
WFO ID wfo-0000786936
COL ID 56CWM
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Watsonia lapeyrouseoides Thereianthus minutus Watsonia minuta Thereianthus lapeyrouseoides